Global Patent Index - EP 3952334 A1

EP 3952334 A1 20220209 - DAMPING FILTER FOR A HEARING DEVICE

Title (en)

DAMPING FILTER FOR A HEARING DEVICE

Title (de)

DÄMPFUNGSFILTER FÜR EIN HÖRGERÄT

Title (fr)

FILTRE D'AMORTISSEMENT POUR UN DISPOSITIF AUDITIF

Publication

EP 3952334 A1 20220209 (EN)

Application

EP 21182046 A 20210628

Priority

DK PA202070511 A 20200803

Abstract (en)

The present disclosure relates to a hearing device having a microphone, where most of the microphone is shielded by an outer shielding of the hearing device. An inlet in the outer shielding allows sound from outside the hearing aid to travel to the microphone to be picked up by it. However, the combination of the microphone and the inlet results in the microphone becoming more sensitive at some audible frequencies. A damping filter positioned in connection with the inlet acts to counter the acoustic effect of the inlet by damping sound in the audible frequency range, where the microphone has increased sensitivity.

IPC 8 full level

H04R 1/22 (2006.01); H04R 25/00 (2006.01); C08J 9/00 (2006.01)

CPC (source: CN DK EP US)

H04R 1/222 (2013.01 - DK EP); H04R 3/00 (2013.01 - CN); H04R 25/45 (2013.01 - US); H04R 25/453 (2013.01 - CN); H04R 25/48 (2013.01 - CN EP); H04R 25/609 (2019.05 - CN); H04R 25/48 (2013.01 - DK)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3952334 A1 20220209; CN 114071320 A 20220218; DK 202070511 A1 20220211; JP 2022028609 A 20220216; US 11653154 B2 20230516; US 12052547 B2 20240730; US 2022038830 A1 20220203; US 2023262398 A1 20230817

DOCDB simple family (application)

EP 21182046 A 20210628; CN 202110884013 A 20210803; DK PA202070511 A 20200803; JP 2021114233 A 20210709; US 202117374725 A 20210713; US 202318135616 A 20230417